There are many schemes and many programs created by men to help believers effectively "witness", or spread the Good News of Christ. Though many of these programs are good (such as Evangelism Explosion and Christian Witness Training), it helps to see what God's Word says about this function of our ambassadorship.
 

in trespasses (PARAPTOMA = DEVIATIONS, UNINTENTIONAL ERROR OR WILLFUL TRANSGRESSIONS OF GOD'S CODES)

and sins; (HAMARTIA = SIN. HERE REFERS TO THE OPERATION OF THE OLD SIN NATURE)

Wherein in time past ye walked (PERIPATEO = TO TREAD ALL AROUND, TO LIVE OR FOLLOW AFTER)

according to the course (AION = THE AGE. THE AGE PRIOR TO CHRIST WAS PRIMARILY SATAN'S AGE FOR HE WON THE FIRST ROUND BY CAUSING MAN'S FALL IN THE GARDEN OF EDEN)

of this world, according to the prince (ARCHON = THE FIRST RANK, CHIEF)

of the power (EXOUSIA = FORCE, MASTER)

of the air, (AER = BREATH, AIR. REFERS TO THE FACT THAT SATAN CONTROLLED A MAJOR AMOUNT OF ALL HUMANITY, I.E. ALL HUMANS BREATH AIR)

the spirit that now worketh (ENERGEO = TO BE ACTIVELY PRODUCING IN)

in the children (HUIOS = MATURE CHILDREN, SONS)

of disobedience: (APEITHEIA = DISBELIEF, REBELLING, UNBELIEVERS)

Among whom also we all had our conversation (ANASTREPHO = WAY OF LIFE, MANNER OF LIVING)

in times past in the lusts (EPITHUMIA = LONGING FOR THE FORBIDDEN OR SINFUL, WRONGFUL DESIRES)

of our flesh, fulfilling the desires (THELEMA = VOLITION, DETERMINATION. WE WERE VOLITIONALLY CONTROLLED BY OUR BODIES, RATHER THAN OUR SPIRITS CONTROLLING OUR BODIES)

of the flesh (SARX = BODY)

and of the mind; (DIANOIA = IMAGINATION, UNDERSTANDING. WE WERE CONTROLLED BY EMOTIONAL DESIRE)

and were by nature (PHUSIS = NATIVE DISPOSITION, NATURAL INCLINATION)

the children of wrath, (ORGE = EXCITEMENT OF THE MIND, VIOLENT PASSION. WE WERE DUE GOD'S PUNISHMENT OR WRATH)

even as others. But God, who is rich (PLOUSIOS = ABOUNDING WITH, WEALTHY WITH)

in mercy, for his great (POLUS = MANY, MUCH)

love (AGAPAO = DIVINE LOVE [NOUN FORM])

wherewith he loved (AGAPE = DIVINE LOVE [VERB FORM])

us, Even when we were dead (NEKROS = A CORPSE, DEAD THING)

in sins, hath quickened (SUZOOPOIEO = TO REANIMATE, MAKE ALIVE AGAIN)

us together with Christ, (by grace ye are saved;)"
 

not the spirit of the world, but the spirit which is of God; (EK HO THEOS = OUT FROM THE GOD. THE HOLY SPIRIT CAME TO US BY COMMAND OF GOD THE FATHER. SEE JOHN 14.16)

that we might know (OIDA, PERFECT ACTIVE SUBJUNCTIVE = KNOW INTUITIVELY WITH CONTINUING RESULTS)

the things that are freely given (CHARIZOMAI, AORIST PASSIVE PARTICIPLE = GRACIOUSLY GIVEN ONCE AND FOR ALL)

to us of (HUPO = UNDER THE AUTHORITY OF)

God. Which things also we speak, not (OUK = NOT!)

in the words (LOGOS, INSTRUMENTAL = BY MEANS OF WORDS/ DOCTRINES)

which man's (ANTHROPOS, ABLATIVE OF SOURCE = FROM THE SOURCE OF MAN'S)

wisdom teacheth, but which the Holy Ghost teacheth; comparing spiritual things with spiritual. But the natural (PSUCHIKOS = SOULISH)

man receiveth (DECHOMAI, PRESENT ACTIVE INDICATIVE + NEGATIVE = IS NEVER ABLE TO EMBRACE, KEEPS ON BEING UNABLE TO)

not the things of the Spirit of God: for they are foolishness (MORIA = SILLINESS, ABSURDITY)

unto him: neither can (DUNAMAI + NEGATIVE = IS NEVER ABLE TO, NEVER HAS THE POWER)

he know (GINOSKO, AORIST ACTIVE INFINITIVE = TO KNOW AT ANY POINT IN TIME)

them, because they are spiritually (PNEUMATIKOS = FROM THE SOURCE OF THE SPIRIT)

discerned. (ANAKRINO, PRESENT PASSIVE INDICATIVE = TO DISCERN TIME AND TIME AGAIN)"

of Christ: for it is the power (DUNAMIS = INHERENT POWER)

of God unto salvation to every one that believeth; (PISTEUO = TO HAVE FAITH IN, CREDIT, ENTRUST)

to the Jew first, and also to the Greek." (THE JEWS WERE OFFERED THE GOSPEL MESSAGE FIRST, THEN, THROUGH PAUL THE APOSTLE, THE GENTILES)

for you that I go away: for if I go not away, the Comforter (PARAKLATOS = HELPER, AIDE, ASSISTANT. BY EXTENSION, ONE WHO PLEADS ANOTHER'S CAUSE)

will not come unto you; but if I depart, I will send him unto you. And when he is come, he will reprove (ELEGEHO = ADMONISH, CONVICT)

the world of sin, (HARMARTIA = SIN. A REFERENCE TO THE SPIRITUAL DEATH WE WERE ALL UNDER)

and of righteousness, (DIKAIOSUNE = JUSTIFICATION, TO BE JUSTIFIED OR DECLARED RIGHTEOUS)

and of judgment: (KRISIS = JUDGMENT. A REFERENCE TO THE FINAL JUDGMENT OF REVELATION 20)

Of sin, because they believe not on me; Of righteousness, because I go to my Father, and ye see me no more; Of judgment, because the prince of this world is judged."